1.Perfect stereo sound 2.Portable vibration speaker 3.10 hrs ... Advantages : 1.Small size,drum degisn and light weight2..surround sound3.PC,MP3,MP4,MD,CD,DVD player, Mobile phone ... durable and fashion design5.Using theory that resonance of sound and music released,make your place to be an ... concertStereo sound effect: Mega Bass/Middle/Treble Stereo 5.Support:Ipod ...